ucarp

user-space replacement to VRRP -- automatic IP fail-over

Install

All systems
curl cmd.cat/ucarp.sh
Debian Debian
apt-get install ucarp
Ubuntu
apt-get install ucarp
Alpine
apk add ucarp
Arch Arch Linux
pacman -S ucarp
Fedora
dnf install ucarp
Windows (WSL2)
sudo apt-get update sudo apt-get install ucarp
Raspbian
apt-get install ucarp
Docker
docker run cmd.cat/ucarp ucarp powered by Commando

ucarp

user-space replacement to VRRP -- automatic IP fail-over

UCARP allows a pair of hosts to share common virtual IP addresses in order to provide automatic fail-over. It is a portable user-land implementation of the secure and patent-free Common Address Redundancy Protocol (CARP, OpenBSD's alternative to the VRRP). Strong points of the CARP protocol are: very low overhead, cryptographically signed messages, interoperability between different operating systems and no need for any dedicated extra network link between redundant hosts.